US Patent Issued to AAC Microtech (Changzhou) on July 21 for "Speaker box" (Chinese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,858, issued on July 21, was assigned to AAC Microtech (Changzhou) Co. Ltd. (Changzhou, China).

"Speaker box" was invented by Zhang Ren (Changzhou, China), Zhiwei Zhong (Changzhou, China) and Wei Song (Changzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application provides a speaker box and a stylus, and the speaker box includes a lower cover, an upper cover, a sounding driver, and side magnetic steels. The sounding driver includes a frame, a first frame, a vibration system fixed to the frame, and a magnetic circuit system to drive the vibration system. The magnetic circuit system includes a lower splint, a magnetic steel, a ...